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Reconstituting lyophilized peptides: a lab overview
How laboratories bring freeze-dried research material back into solution, what diluents are used and how to avoid common handling mistakes.
What reconstitution means
Lyophilized material is a dry powder. Reconstitution is adding a measured volume of a suitable diluent so the material can be used in an assay. The volume and diluent are set by the laboratory’s written protocol for the experiment, not by the supplier.
Common diluents
Bacteriostatic water (sterile water with 0.9% benzyl alcohol) is used where a vial will be accessed more than once. Sterile water or a buffer may be specified for single-use work or for material that is sensitive to preservatives.
Good technique
Let the vial reach room temperature, wipe the stopper, add the diluent slowly down the inside wall of the vial and swirl gently rather than shaking. Shaking can cause foaming and may damage some peptides.
Label everything
Record the compound, lot, diluent, volume, date and initials on the vial. Reconstituted material is generally less stable than powder, so follow your protocol for cold storage and discard dates.
Related products
Nuvera Form supplies bacteriostatic water 10 ml, and a GLP-3 10 mg bundle that includes a vial.